1. If you don't mind using an older version of Photoshop (CC 2021), you could try this installer: https://github.com/LinSoftWin/Photoshop-CC2022-Linux

2. I would recommend using Vesktop instead of the official client - it's faster, has better privacy, and best of all, screensharing including audio works like a charm.

4. You could run your games thru gamescope - and as a bonus, you can use features like FSR for better quality or performance.